Overview

overview

10

Static

static

10

aertyhfd.exe

windows7-x64

10

aertyhfd.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    1797s
  • max time network
    1155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-01-2025 11:06

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General

  • Target

    aertyhfd.exe

  • Size

    74KB

  • MD5

    b8ffca27af2dd7eaf924544d9f4dc080

  • SHA1

    9cb5945789c67912ac20ab478bc0596b10db28a8

  • SHA256

    3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9c

  • SHA512

    a9f3f7bbce8d658c5a6a8489ddb4d694865074f29499ee8856cff3bdd87758761d03466ccd509c24c7f68c14907f70c866ee1bbaad9ed22e51e4d500b8a58a43

  • SSDEEP

    1536:eUYNwcxKHXwzCtmPMV3JSaGLm43XHIls1bP/7jnQzcyLVclN:eUYicxK8WmPMV3wDn4s1bPTbQjBY

Score
10/10
asyncratdefaultrat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

127.0.0.1:9999

Mutex

ytgjjhywchk

Attributes
  • delay

    1

  • install

    true

  • install_file

    RealtekHighDefinitionAudio.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Asyncrat family
    asyncrat
  • Async RAT payload 1 IoCs
    rat
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\aertyhfd.exe
    "C:\Users\Admin\AppData\Local\Temp\aertyhfd.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3788
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "RealtekHighDefinitionAudio" /tr '"C:\Users\Admin\AppData\Roaming\RealtekHighDefinitionAudio.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3268
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "RealtekHighDefinitionAudio" /tr '"C:\Users\Admin\AppData\Roaming\RealtekHighDefinitionAudio.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1100
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp926C.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4252
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4584
      • C:\Users\Admin\AppData\Roaming\RealtekHighDefinitionAudio.exe
        "C:\Users\Admin\AppData\Roaming\RealtekHighDefinitionAudio.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2996

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp926C.tmp.bat
    Filesize

    170B

    MD5

    eacf10f1c07c877827c2fd372d232dc0

    SHA1

    573dfb14854a8ef2c6c56d46fb3e748901c03a64

    SHA256

    328990a37800b82e559e3093f14a9c3a4720e50f30b91687d194c22624cf777a

    SHA512

    ca309c809ef11939487ce2014bece3965fc38a6fbe3e5421c667e21609412aa1f3493c2cf811c84121d98c0ad19dd4fe16aab21dce884f7407e10d380d45f473

    Download Submit

  • C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
    Filesize

    8B

    MD5

    cf759e4c5f14fe3eec41b87ed756cea8

    SHA1

    c27c796bb3c2fac929359563676f4ba1ffada1f5

    SHA256

    c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

    SHA512

    c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

    Download Submit

  • C:\Users\Admin\AppData\Roaming\RealtekHighDefinitionAudio.exe
    Filesize

    74KB

    MD5

    b8ffca27af2dd7eaf924544d9f4dc080

    SHA1

    9cb5945789c67912ac20ab478bc0596b10db28a8

    SHA256

    3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9c

    SHA512

    a9f3f7bbce8d658c5a6a8489ddb4d694865074f29499ee8856cff3bdd87758761d03466ccd509c24c7f68c14907f70c866ee1bbaad9ed22e51e4d500b8a58a43

    Download Submit

  • memory/3788-0-0x00007FFD99B73000-0x00007FFD99B75000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3788-1-0x0000000000F30000-0x0000000000F48000-memory.dmp

    Filesize

    96KB

    Download

  • memory/3788-3-0x00007FFD99B70000-0x00007FFD9A631000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3788-8-0x00007FFD99B70000-0x00007FFD9A631000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/3788-9-0x00007FFD99B70000-0x00007FFD9A631000-memory.dmp

    Filesize

    10.8MB

    Download